The Duodecimal Bulletin

is an official publication of The Dozenal Society of America, Inc.
Editorial Office:
5106 Hampton Avenue
Suite 205
Saint Louis, MO 63109-3115

Michael De Vlieger, Editor

Index Links:

About the Bulletin

Archive Index

Pictorial Synopses:
011-00 to 043-0E
051-10 to 0E2-1E
101-20 to 152-2E
161-30 to 230-3E
240-40 to 293-4E
2X1-50 to 313-5E
314-60 to 352-6E
361-70 to 3E2-7E
401-80 to 452-8E
461-90 to 4E2-9E
501-X0 to 552-XE

About the Archive

The Duodecimal Bulletin Pictorial Index

Whole Numbers 0 (zero) through E; (eleven)

Back issues between 1161; (1945.) and 1164; (1948.) are currently available as web optimized PDF documents. Click on the icon of the magazine to view a PDF of the corresponding issue. Click on “TOC”, where it appears, to view a table of contents.

Click here for more information about the pictorial archive (Please scroll to the bottom of the destination page).

Visit the Main Index | Next » | Last »» pictorial index.

011-00 (1945), TOC
Inaugural Issue

012-01 (1945)
The Do-Metric System

013-02 (1945)
The Opposed Principles

021-03 (1946)
Camp Numerals
Ideas & Opinions

022-04 (1946)
Mathematical Tables
Sines, Cosines, Tangents

031-05 (1947)
Fibonacci Sequence
Tables of Log Trig

032-06 (1947)
Squares, square roots,
and prime numbers

033-07 (1947)
“Kin of The Golden Mean”
Cube Roots

034-08 (1947)
H. G. G. Robertson’s
Full Dozenal System

041-09 (1948)
G. Elbrow’s
Full Dozenal System

042-0X (1948)
Godjevatz Music Notation,
Table of Prime Periods

043-0E (1948)
Dozenal Slide Rule

Visit the Main Index | Next » | Last »» pictorial index.

Presenting a series of brief overviews of the DSA and its Bulletin across each “duodecade” or set of dozen issues. These overviews are strictly those written by the present Editor, one who didn’t have the pleasure of knowing the Founders nor the preeminent players of the “classic” Society. In this regard, the following overview is somewhat “non-canonical”: for a history of the DSA seen through someone who knew the early Members and Founders, read Prof. Gene Zirkel’s history. To get an inside look at the foundation of the Society, check out F. Emerson Andrews’ article “How We Began”, focusing on the pre-establishment years, at Vol. 9 pages 3-9.

The relatively recent membership of the present Editor offers a more detached viewpoint that may be of some use and interest. What follows is a synopsis of the development of the DSA as seen from a newly-joined Member (11XE;). This is a viewpoint of someone born when the DSA was two dozen two years old, familiar with the early Society mainly through its Bulletin, having scanned, processed, and read its 2058; pages and roughly one third of the 960; pages of the British publications to make this Digital Archive in the summer of 11E6;. Enjoy the story and write in with comments :).

Foundation and the First Generation of the DSA

The Duodecimal Society of America, established in 1944, begins publishing the Duodecimal Bulletin the next year, opening with hearty greetings and salutations. In this first dozen issues, Editor Ralph Beard establishes the “classical” numerals for digits ten and eleven (the “transdecimal” numerals), and basic dozenal facts are explored. Mathematical constants, new measurement systems, cheerful correspondence from the World War II front lines roll into the Bulletin. Expertly drafted figures in “Kin of The Golden Mean” seem to detail the exacting love some felt for the new cause. Dozenalists revel with enthusiasm in their new organization. Some folks like Messrs. Elbrow and Robertson submit all-encompassing dozenal systems of thought. Others like Mary Lloyd pose teasers, games, even poetry and song about the dozen. It seems, near the end of this first duodecade, that the “first generation” of DSA Members are in on the ground floor of a new, practical, and amazing mathematical tool: the dozen! Continue »

This page revised Saturday 3 September 2011.